两个电话之间的SIP通话范例
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两个电话之间的SIP通话范例

SIP-call-between-two-phones

可通过以下过程建立两个电话之间的SIP通话:

  • 拨打方电话发送邀请
  • 接收方电话返回一个通知应答100–正在尝试
  • 接收方电话发出并送回应答180–正在拨打
  • 当拨打方拿起电话,接收方电话发出应答200–OK
  • 拨打方电话回以确认应答,以告知对方
  • 当通过RTP传输数据时,就可以通话了
  • 当拨打方挂上电话后,会向接收方电话发出一个再见呼叫
  • 拨打方电话会回以应答200–OK

就这么简单!SIP协议逻辑性强,容易理解。